Nonlinear Inference Regions

Thomas Hoffmann <hoffmann at ehmgs2.et.tu-dresden.de> writes:

I would like to experiment with nonlinear inference regions (following
chap. 6 of the Bates/Watts book).

I have used the nls library for fitting a nonlinear model to measured data
but have some difficulties to apply "R speak" to the math of the above mentioned
text.

Can anybody point me to an example of the computation of a variant of nonlinear
inference regions using R? 

Some of those methods are already implemented in the nls package for
R.  For example, the creation of the profiles themselves and plotting the
profile-based marginal confidence intervals on the parameters is
available through profile() and plot.profile.nls().  See
 example(plot.profile.nls)
for an example.

We don't make use of the profile traces in this version of the
plots but the profile trace is available in the object created by
profile.
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